Can someone please help with this question, the similarity statement is triangle BAC~ triangle EDF

Mathematics

1 answer:

omeli [17]3 years ago

8 0

Answer:

Step-by-step explanation:

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Please help me with this.

OLga [1]

Swapping rows alters the sign of the determinant:

$\begin{vmatrix} x & y & z \\ -8 & 2 & -12 \\ u & v & w \end{vmatrix} = - \begin{vmatrix} x & y & z \\ u & v & w \\ -8 & 2 & -12 \end{vmatrix}$

Multiplying a single row by a scalar scales the determinant by the same amount:

$\begin{vmatrix} x & y & z \\ u & v & w \\ -8 & 2 & -12 \end{vmatrix} = -2 \begin{vmatrix} x & y & z \\ u & v & w \\ 4 & -1 & 6 \end{vmatrix}$

Then

$\begin{vmatrix} x & y & z \\ -8 & 2 & -12 \\ u & v & w \end{vmatrix} = -(-2) \begin{vmatrix} x & y & z \\ u & v & w \\ 4 & -1 & 6 \end{vmatrix} = 2\times(-6) = \boxed{-12}$

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2 years ago

HELP ASAP MARKING BRAINLIEST

leonid [27]

Answer:

tell me the question

Step-by-step explanation:

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3 years ago

What is surface area and what is volume?

natita [175]

Surface area is the areas of all the faces added up. Volume is how much a 3D figure can hold.

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3 years ago

What is the value of z in the equation 2(4z − 6 − 6) = 170 − 46? 12.5 15.5 16.5 18.5

vivado [14]

2(4z - 6 - 6) = 170 - 46

2(4z - 12) = 124 |use distributive property: a(b - c) = ab - ac

8z - 24 = 124 |add 24 to both sides

8z = 148 |divide both sides by 8

z = 18.5

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3 years ago

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How can Help me<br> (a+b)^2≥4ab

sattari [20]

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3 years ago

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